Oil-burner.



No. 70I,l77. l Patented May'27, |902.

E. W. DUNN.

OIL BURNER;

(Application filed Mar. 26, 1901.)

(No Model.)

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i E STATES PATENT OEEicE.

EMANUEL IV. DUNN, OF SAN JOSE, CALIFORNIA.

OIL-BURNER.

SPECIFICATION formingpart of Letters Patent NO. 701,177, dated. May 27', 1902. Application filed March 26,1901. Serial No. 52,911. (No model.)

nia, have invented an Improvement in Oil` Burners; and I hereby declarepthe'following to be a full, clear, and exact description of the same.

My invention relates to improvements in apparatus for burning oil, and it is especially applicable to an apparatus for which patent was issued to me November 15, 1898. p

My present invention comprises details of construction which will be more fully explained by reference to the accompanying drawings, in which- Figure 1 is a lateral section through a stove, showing my improvements therein. Fig. 2 is a modification to be referred to.

The apparatus is designed to be used in furnaces of any description where heat is required and may be modified in form to suit the form or requirements of the particular furnace where it is to be used. In the present case I have shown the apparatus as adapted to a cooking-stove. It consists of a shallow gas-chamber A,havin g an irregularlysurfaced burner-plate B located above it. This plate has holes made through it, said holes being conical and convergent from below and passing through raised bosses upon the upper surface of the plate, so that any liquid will flow down the sides of these bosses and away from the openings and be distributed over the surface of the burner-plate B.

Both gas or vapor and liquid oil may be employed in this apparatus. IVhen the liquid is employed, it arrives through pipes 3, with suitable controlling-valves, and these pipes have vertical branches 4 extending up through the lower chamber A and through holes in the burner-plate B, passing upward to a suitable height above the burner-plate,

as shown. In some cases the pipes may be straight above the burner-plate, having openings at the top for the discharge of the liquid and vapor produced by the heat. In

other cases (see Fig. 2) the pipe 4 may be bent upon itself, curving downwardly from the upper end, thence bent again, so that the discharge end extends upwardly, as in the first instance. In either case the upper end of the pipe is inclosed in an exterior hood or casing 5, closed at the top, having perforations o' around the sides through which vapor producedby heatingthe oil will be discharged.

The upper delivery end of the pipe 4 has preferably'a divergent iiange around it, as shown at 7, this flange serving to direct the overflowing liquid outwardly away from the 6o sides ofthe pipe and causing it to drop between the pipe and the exterior casing. Any liquid not vaporized during this operation is allowed to flow out through the bottom of the casing 5 and upon the burner-plate B, where 65 it will be distributed over the surface and further vaporized and ignited thereon.

Within the chamber A, beneath the burnerplate, is the pipe for the distribution of gas or vapor, which eventually rises through the 7o openings in the burner-plate previously described. This pipe is preferably made of a shape corresponding with the interior of the gas-chamber. It may be oval or rectangular,

as shown, and is suitably supported within the chamber. Gas or vapor is brought to this distributing-pipe 8 by a conducting-pipe 9 from the heating-coil 10 in the upper portion of the apparatus above the burner-plate B,

or, if natural gas is used, it may be brought 8o by the pipe 9 directly from the source of supply. From the distributor 8 pipes 10 extend upwardly through holes in the burnerplate B, and these pipes preferably extend a little above the upper surface of the plate.

suitable openings, either in the top or sides, g5

and be thence conducted to other parts of the stove or furnace to be heated.

The device is here shown as applied to a' cooking-stove, as at 12, and where pipes 13 are coiled within the lire-box to forin what is loo called a water-back it is desirable to apply the heat directly to these pipes for the more rapid heating of water. I therefore make holes or perforations 14 through the sides of the box 11, and through these holes jets of flame are allowed to escape and act directly upon the water-containing pipes.

Air, steam, or water connections of any Well-known character may be employed for supplying hot air or steam to blend with the burning gases and assist in the combustion. In Fig. 1 is shown a pipe A', leading from the chamberA. This pipe is intended to convey unconsumed' oil; but it will also admit air suicient for combustion.

Having thus described my invention, what Iclaim as new, and desire to secure by Letters Patent, is

l. In an apparatus for burning petroleum, the combination of a table having openings made through the surface, with flanges surrounding said openings and projecting above the 'main-table surface, open-topped fuel supply .pipes extending above said surface, aud'hoods therefor closed at the top and open at the bottom.

2. In an apparatus for burning petroleum, the combination of a burning-table having openings made therethrough with raised flanges surrounding said openings, fuel-supply pipes extending upwardly through and above the surface of the table, closed top hoods iitting over said pipes, and extending downwardly to nea-r the surface of the table, saidhoods having discharge-openings at the bottom and through the sides.

3.- In an apparatus'for burning petroleum, the combination of a burner-plate having openings, with raised fianges surrounding said openings, open-topped fuel-supply pipes extending above the table-surface, and having annular projecting and downwardly-divergent flanges around the upper end, closed tophoods of larger diameter than said flanges,

said hoods having discharge-openings at the bottom and through the sides.

4. In an apparatus for burning petroleum, the combination of a chamber, means for introducing a fluid fuel therein, a burner-plate located above said chamber having holes made therethrough, with raised Iianges surrounding said openings, open-topped fuel-supply pipes extending through said chamber and above the burner-plate, annular flanges surrounding the tops of the pipes divergent downwardly, closed top hoods of larger diameter than the ilanges, tting over the pipes above the burner-plate having discharge-openings at the bottom and through the sides.

5. In an apparatus for burning petroleum, the combination of a burner-plate having openings with flanges surrounding thesame and -projecting above the upper surface of said burner, open-topped fuel-supply pipes extending above said plate and hoods encompassing the upper ends of said pipes, a closed chamber below the burner-plate, and a pipe within said chamber for supplying a gaseous fuel thereto said pipe having passages leading from it to a point above the plate.

6. In anapparatus for burning petroleum, the combination of superposed chambers, an intermediate burner-plate, liquid fuelsupply pipes extending upwardly through said plate, and distributers connected therewith, and gaseous-luid-supply pipes disposed within the lower chamber having perforations and passages made in them, said burner plate having openings through which said gaseous fuel passes.

In Witness whereof I have hereunto set my hand.

EMANUEL W. DUNN.

Witnesses:

S. H. NoURsE, JEssIE C. BRODIE. 

